Table 3. The characteristics of sample among the landscape architecture workers in South Korea

	Classification	Frequency	Percentage (%)
		341
Sex	Man	225	65.98
	Female	116	3402
Average work time	8 hour	82	24.19
	9 hour	74	21.83
	10 hour	83	24.48
	12 hour	47	13.86
	13 hour	8	2.36
	14 hour	13	3.83
	15 hour	29	8.55
	More than 15 hours	3	0.88
Annual salary	Less than 20 million won	74	22.02
	20 million won∼25 million won	74	22.02
	26 million won∼30 million won	64	19.05
	31 million won∼35 million won	40	11.90
	36 million won∼40 million won	20	5.95
	41 million won∼50 million won	27	8.04
	51 million won∼60 million won	23	6.85
	51 million won∼70 million won	7	2.08
	More than 800 million won	7	2.08